React Hook Form author here, It's great to hear feedback from the community. I am glad you enjoyed using field-form, and we should all appreciated the hard work that the author have putting in. In case, you may take a look again with RHF, let me know if you have any problems with it, we can work it out. In terms of integrate with external components, we are doing it pretty nicely IMO:
Codesandbox: examples with MUI, react-select and etc.
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